How many DWC Buckets is advisable to put under an air cooled 1,000 watt (with glass) High pressure sodium light on a 6 foot light rail track?

Another question, seeing as it's an 1,000 watt HPS it's fairly hot but wouldn't having it on a light rail, and the cooling mechanism help compencate for that? So what would you say the acceptable distance between the plants and an air cooled 1,000W HPS on a 6' light rail?

I'm going for most bud/space preferably with well spaced plants so they have plenty of room to grow. Plenty of mylar and ventilation.
Buddahbear Reviewed by Buddahbear on . Lighting Question! Please help! How many DWC Buckets is advisable to put under an air cooled 1,000 watt (with glass) High pressure sodium light on a 6 foot light rail track? Another question, seeing as it's an 1,000 watt HPS it's fairly hot but wouldn't having it on a light rail, and the cooling mechanism help compencate for that? So what would you say the acceptable distance between the plants and an air cooled 1,000W HPS on a 6' light rail? I'm going for most bud/space preferably with well spaced plants so they have Rating: 5